3 papers
math.AG2002
Another classification of Incidence Scrolls
Rosa Cid, Manuel Pedreira
The aim of this paper is the computation of the degree and genus of all incidence scrolls in Pn. For this, we fix the dimension of a linear space which have a base space of this fi…
math.AG2001
Canonical Geometrically Ruled Surfaces
Luis Fuentes Garcia, Manuel Pedreira Perez
We prove the existence of canonical scrolls; that is, scrolls playing the role of canonical curves. First of all, they provide the geometrical version of Riemann Roch Teorem: any s…
math.AG2000
Classification of Incidence Scrolls(I)
Rosa Cid, Manuel Pedreira
The aim of this paper is to obtain a classification of scrolls of genus 0 and 1, which are defined by a one-dimensional family of lines meeting a certain set of linear spaces in ${…